I bought this product because the person in customer service said it was easy to install and no technical skills needed (not the case). It does not indicate anything about cutting up 02 connector connections (but there is a lot of cutting). I was going to send it back but with restocking fees, shipping fees and all the rest of there mumbo-jumbo BS it's actually cheaper to just keep it. AGAIN don't buy it you will just be wasting your money.